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Finding the Fourth Proportional to 8,830.35, 13,171.14 and 8,217.99

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Solution

The fourth proportional to 8,830.35, 13,171.14 and 8,217.99 is: 12,257.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.35 : 13,171.14 = 8,217.99 : x
  2. Step 2: Convert to fraction form
    8,830.35/13,171.14 = 8,217.99/x
  3. Step 3: Cross multiply
    8,830.35x = 13,171.14 × 8,217.99
  4. Step 4: Simplify right side
    8,830.35x = 108,240,296.81
  5. Step 5: Solve for x
    x = 108,240,296.81/8,830.35
  6. Step 6: Final answer
    x = 12,257.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.